[X2Go-Dev] Status of fixing CVE-2015-0255 (2015-02-10)

Michael DePaulo mikedep333 at gmail.com
Tue Feb 17 14:39:59 CET 2015


On Mon, Feb 16, 2015 at 8:14 AM, Michael DePaulo <mikedep333 at gmail.com> wrote:
> I am looking into fixing the recently announced X.org vulnerability
> (CVE-2015-0255) in nx-libs.
> http://www.x.org/wiki/Development/Security/Advisory-2015-02-10/
>
> It looks like nx-libs is affected.
>
> It also looks like some distros (Fedora, Debian) have fixed it, while
> others (RHEL 5, 6 and 7, Debian LTS) have not.
>
> It also looks like the X.org 1.16.x commits are easier to apply to
> nx-libs than the X.org 1.17.x commits are. The 1.17.x commits are
> linked to on that advisory page.
>
> The X.org 1.16.x commits are here:
> the branch:
> http://cgit.freedesktop.org/xorg/xserver/log/?h=server-1.16-branch
> the prereq:
> http://cgit.freedesktop.org/xorg/xserver/commit/?h=server-1.16-branch&id=747cea16c4de1f48e838e1388301a2e24a3da6c4
> the fix itself:
> http://cgit.freedesktop.org/xorg/xserver/commit/?h=server-1.16-branch&id=8f61533b16635a0a13f4048235246edb138fa40b
>
> -Mike#2

Status Update:

I managed to backport the prereq commit to nx-libs 3.6.x.
http://code.x2go.org/gitweb?p=nx-libs.git;a=commit;h=a1cd16d6d05b197fff110d26b458d8bd6cf3c560

It was non-trivial to merge due to this refactoring commit from 2011:
http://cgit.freedesktop.org/xorg/xserver/commit/?h=server-1.16-branch&id=2c7c520cfe0df30f4bc3adba59d9c62582823bf8


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